Pipe-wrench.



No. 876,651. PATENTED JAN. 14, 1908." E. F. LUBKE & E.- G. REED.

PIPE WRENCH.

APPLICATION FILED SEPT.9,'1907.

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IIKI on opposite sides of the handle bar.

UNITED STATES PATENT OFFICE.

ERNEST F. LUBKE AND EDMUND O. REED, OF NEAR ARLINGTON, TEXAS.

PIPE-WRENCH.

Specification of Letters Patent.

Patented Jan. 14,1908.

Application filed September 91 1907- Seri'al No. 392-014- To all whom it may concern:

Be it known that ERNEST F. LUBKE and EDMUND (J. REED, citizens of the United States, residing near the town of Arlington, in the county of Tarrant and State of Texas,

' have invented certain new and useful Improvements in Pipe-Wrenches, of which the following is a specification.

This invention relates to pipe wrenches, particularly to that class thereof having an inner jaw integral with the handle and a pivoted outer hooked jaw.

The object of the invention is to provide improved means for adjusting the outer aw.

A further object is to improve the construction of the jaws, as more fully hereinafter pointed out.

The invention is illustrated in the acco1n panying drawings in which, I

Figure 1 is a side view of the wrench. 2 is a back edge view.

Referring specifically to the drawings, 6 indicates the handle bar having at its front end the inner jaw 7, which extends laterally Said bar may be provided with a wooden handle if desired.

The outer hooked jaw is indicated at S and it is split or divided lengthwise for a portion of its length to receive the handle bar 6 between the two side pieces or parts, as shown in Fig. 2. The outer jaw is pivoted at 9, at its inner end, to a cuff 1.0 which is slidable in and out along the handle bar 6. On its rear side the cuff is provided with a lug 11 which is tapped as indicated at 12 to receive a longitudinal screw 13 the inner end of which finds a bearing at one end at 14 in an off set part 15.of the handle bar, and at the other end has a bearing as at 16 in a projecting piece 17 fixed to the handle bar. The screw has a thumb nut 18.

The face of the off set 15 of the handle bar forms an angle with respect to the longitu- Fig.

dinal axis of said bar, so that when a pipe is placed within theshook of the outer jaw it is gripped by swinging the inner jaw 7 toward the bill of the hook, and the hold is tightened by the inclined arrangement of the face or front edge of the off set 15. Stops 19 project from the sides of the off set part 15, and the outer jaw strikes these stops when the wrench takes held under pressure in order to prevent crushing the pipe. The swing or movement of the outer jaw is thus limited by the inner jaw 7 at the front and stops 19 at the back.

The outer jaw is adjusted in and out by means of the screw 13, in an obvious manner and so is accommodated to various sizes of pipes.

In use the pipe or rod to be turned is engaged within the hooked jaw, and when the power is applied the inner jaw moves toward the bill of the hooked jaw and grips the work.

W e claim In a wrench, the combination of a handle bar having an offset portion at the front end with a face forming an inner jaw and a pivoted hooked outer jaw, split to form two branches extending on opposite sides of the handle-bar, the inner jaw extending between said branches, a cuff slidable on the handle and located between the said branches, and pivotally connected thereto, and having a tapped extension at the rear side, and a nontraveling screw working through said extension and between the branches of the outer jaw and having a hearing at one end in said offset portion of the handle bar.

In testimony whereof we here affix our signatures, in presence of two witnesses.

ERNEST F. LUBKE. EDMUND C. REED. 

